TLV840
- Operating voltage range : 0.7 V to 6 V
- Nano supply current : 120 nA (Typical)
- Fixed threshold voltage (VIT-): 0.8 V to 5.4 V
- Threshold voltages available in 100mV steps
- High accuracy: ±0.5% (Typical)
- Built-in hysteresis (VHYS): 5% (Typical)
- Reset time delay (tD): capacitor-based programmable (TLV840C, TLV840M)
- Minimum time delay: 40 µs (typical) without capacitor
- Active-low manual reset (MR) (TLV840M)
- Four output topologies:
- TLV840xxDL: open-drain, active-low (RESET)
- TLV840xxPL: push-pull, active-low (RESET)
- TLV840xxDH: open-drain, active-high (RESET)
- TLV840xxPH: push-pull, active-high (RESET)
- Wide temperature range: –40°C to +125°C
- Package: SOT23-5 (DBV)
The TLV840 family of voltage supervisors or reset ICs can operate at high voltage levels while maintaining very low quiescent current across the whole VDD and temperature range. TLV840 offers best combination of low power consumption, high accuracy and low propagation delay (tp_HL= 30 µs typical).
Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-). Reset signal is cleared when VDD rise above VIT- plus hysteresis (VHYS) and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground for TLV840C and TLV840M. For a minimum reset delay time the CT pin can be left floating. TLV840N does not offer a programmable delay and offers fixed reset delay timing options: 40 µs, 2 ms, 10 ms, 30 ms, 50 ms, 80 ms, 100 ms, 150 ms, 200 ms.
Additional features: Low power-on reset voltage (VPOR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (Ilkg(OD)). TLV840 is a perfect voltage monitoring solution for industrial applications and battery-powered / low-power applications.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TLV840 Low Voltage Supervisor with Adjustable Reset Time Delay and Manual Reset datasheet (Rev. C) | 2020/08/13 | |
| Technical article | Three reasons to add a voltage supervisor to your next wearable power design | PDF | HTML | 2021/06/17 | |
| Application note | Back-up Power Supply Switchover with Supply Voltage Supervisor & Power & Power M | 2020/04/09 | ||
| Application note | Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions | 2020/03/10 | ||
| Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020/02/28 | ||
| EVM User's guide | TLV840EVM Voltage Supervisor User's Guide | 2020/02/13 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/06/28 |
설계 및 개발
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TLV840EVM — 조정 가능한 리셋 시간 지연 및 수동 리셋을 지원하는 TLV840 저전압 슈퍼바이저 평가 모듈
The TLV840 evaluation module (EVM) is designed to evaluate the performance of the TLV840 product, which is a 5-pin voltage supervisor and reset IC. TLV840 offers operation up to 6 V, while maintaining low quiescent current of 1.2 µA (max) in addition to 2% maximum accuracy.
TLV840EVM supports (...)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| SOT-23 (DBV) | 5 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치